Abstract
Using an extension of the Boltzmann equation for the Wigner distribution appropriate for dilute spin 1 systems, spin diffusion equations are derived in the limit of large nuclear polarization in the non-degenerate régime. As an example of a system to which this work may be applied, the domain of validity of the Boltzmann equation for doubly spin-polarized deuterium, D↓↓, is studied. The effect of a finite field gradient is discussed. A calculated spin wave spectrum for a model one-dimensional system in the presence of a gradient is presented. Analogous effects in spin 1/2 systems are compared and contrasted.
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This article appears in expanded from in K. A. Earle, Ph.D. thesis, Cornell University (1992).
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Earle, K.A., Freed, J.H. & Lee, D.M. Spin diffusion in doubly spin polarized atomic deuterium. J Low Temp Phys 89, 911–937 (1992). https://doi.org/10.1007/BF00683894
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DOI: https://doi.org/10.1007/BF00683894